This is the 17072nd most frequent Polish word.
wyższego
"Wyższego" means "higher" or "of a higher" (genitive or accusative singular form of "wyższy").
An adjective in the genitive singular form, describing the noun 'roku' (year).
On jest studentem wyższego roku na uniwersytecie.
He is a student of a higher year at the university.
An adjective in the genitive singular form, describing the noun 'budynku' (building).
Musimy wspiąć się na piętro wyższego budynku, aby zobaczyć widok.
We need to climb to the floor of a taller building to see the view.
An adjective in the genitive singular form, describing the noun 'dobra' (good).